Night report 2024-06-07

Night report 2024 - 06 - 07

Observers: Katja Matilainen, Christian Vassallo

Support: Thomas Killestein, Panos Charalampopoulos, Niilo Koivisto, Hanin Kuncarayakti

TAT: Priscila J. Pessi,  Xinyue Sheng, Eduardo Concepcion

Calibrations:
Afternoon: bias, PESSTO_calib (arcs + spec flats), Gr18+20 flats + arcs. 

Evening twilight: UBVRi skyflats

Morning twilight: - 

Start: Weather at UT 00:00: humidity 18%, temperature 14.8C, wind 2.8 m/s. Thin clouds, seeing around 1.4 arcseconds.

Mid:  Weather at UT 04:00: humidity 23.1%, temperature 13C, wind 6.2 m/s. Clear sky, seeing around 0.8 arcseconds.

End: Weather at UT 08:00: humidity 24.5%, temperature 12.2C, wind 6.9 m/s. Clear sky, seeing around 1.2 arcseconds.

Comments: DIMM seeing monitor not working; seeing estimated from imaging.